Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Larry Finger | 926 | 96.96% | 1 | 20.00% |
chenqiwu | 14 | 1.47% | 1 | 20.00% |
Li Zhijian | 10 | 1.05% | 1 | 20.00% |
Silvan Jegen | 3 | 0.31% | 1 | 20.00% |
Thomas Gleixner | 2 | 0.21% | 1 | 20.00% |
Total | 955 | 5 |
// SPDX-License-Identifier: GPL-2.0-or-later /* Broadcom B43legacy wireless driver SYSFS support routines Copyright (c) 2006 Michael Buesch <m@bues.ch> */ #include "sysfs.h" #include "b43legacy.h" #include "main.h" #include "phy.h" #include "radio.h" #include <linux/capability.h> #define GENERIC_FILESIZE 64 static int get_integer(const char *buf, size_t count) { char tmp[10 + 1] = { 0 }; int ret = -EINVAL, res; if (count == 0) goto out; count = min_t(size_t, count, 10); memcpy(tmp, buf, count); ret = kstrtoint(tmp, 10, &res); if (!ret) return res; out: return ret; } static int get_boolean(const char *buf, size_t count) { if (count != 0) { if (buf[0] == '1') return 1; if (buf[0] == '0') return 0; if (count >= 4 && memcmp(buf, "true", 4) == 0) return 1; if (count >= 5 && memcmp(buf, "false", 5) == 0) return 0; if (count >= 3 && memcmp(buf, "yes", 3) == 0) return 1; if (count >= 2 && memcmp(buf, "no", 2) == 0) return 0; if (count >= 2 && memcmp(buf, "on", 2) == 0) return 1; if (count >= 3 && memcmp(buf, "off", 3) == 0) return 0; } return -EINVAL; } static ssize_t b43legacy_attr_interfmode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev); ssize_t count = 0; if (!capable(CAP_NET_ADMIN)) return -EPERM; mutex_lock(&wldev->wl->mutex); switch (wldev->phy.interfmode) { case B43legacy_INTERFMODE_NONE: count = sysfs_emit(buf, "0 (No Interference Mitigation)\n"); break; case B43legacy_INTERFMODE_NONWLAN: count = sysfs_emit(buf, "1 (Non-WLAN Interference Mitigation)\n"); break; case B43legacy_INTERFMODE_MANUALWLAN: count = sysfs_emit(buf, "2 (WLAN Interference Mitigation)\n"); break; default: B43legacy_WARN_ON(1); } mutex_unlock(&wldev->wl->mutex); return count; } static ssize_t b43legacy_attr_interfmode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev); unsigned long flags; int err; int mode; if (!capable(CAP_NET_ADMIN)) return -EPERM; mode = get_integer(buf, count); switch (mode) { case 0: mode = B43legacy_INTERFMODE_NONE; break; case 1: mode = B43legacy_INTERFMODE_NONWLAN; break; case 2: mode = B43legacy_INTERFMODE_MANUALWLAN; break; case 3: mode = B43legacy_INTERFMODE_AUTOWLAN; break; default: return -EINVAL; } mutex_lock(&wldev->wl->mutex); spin_lock_irqsave(&wldev->wl->irq_lock, flags); err = b43legacy_radio_set_interference_mitigation(wldev, mode); if (err) b43legacyerr(wldev->wl, "Interference Mitigation not " "supported by device\n"); spin_unlock_irqrestore(&wldev->wl->irq_lock, flags); mutex_unlock(&wldev->wl->mutex); return err ? err : count; } static DEVICE_ATTR(interference, 0644, b43legacy_attr_interfmode_show, b43legacy_attr_interfmode_store); static ssize_t b43legacy_attr_preamble_show(struct device *dev, struct device_attribute *attr, char *buf) { struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev); ssize_t count; if (!capable(CAP_NET_ADMIN)) return -EPERM; mutex_lock(&wldev->wl->mutex); if (wldev->short_preamble) count = sysfs_emit(buf, "1 (Short Preamble enabled)\n"); else count = sysfs_emit(buf, "0 (Short Preamble disabled)\n"); mutex_unlock(&wldev->wl->mutex); return count; } static ssize_t b43legacy_attr_preamble_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct b43legacy_wldev *wldev = dev_to_b43legacy_wldev(dev); unsigned long flags; int value; if (!capable(CAP_NET_ADMIN)) return -EPERM; value = get_boolean(buf, count); if (value < 0) return value; mutex_lock(&wldev->wl->mutex); spin_lock_irqsave(&wldev->wl->irq_lock, flags); wldev->short_preamble = !!value; spin_unlock_irqrestore(&wldev->wl->irq_lock, flags); mutex_unlock(&wldev->wl->mutex); return count; } static DEVICE_ATTR(shortpreamble, 0644, b43legacy_attr_preamble_show, b43legacy_attr_preamble_store); int b43legacy_sysfs_register(struct b43legacy_wldev *wldev) { struct device *dev = wldev->dev->dev; int err; B43legacy_WARN_ON(b43legacy_status(wldev) != B43legacy_STAT_INITIALIZED); err = device_create_file(dev, &dev_attr_interference); if (err) goto out; err = device_create_file(dev, &dev_attr_shortpreamble); if (err) goto err_remove_interfmode; out: return err; err_remove_interfmode: device_remove_file(dev, &dev_attr_interference); goto out; } void b43legacy_sysfs_unregister(struct b43legacy_wldev *wldev) { struct device *dev = wldev->dev->dev; device_remove_file(dev, &dev_attr_shortpreamble); device_remove_file(dev, &dev_attr_interference); }
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